Youth sports can be a powerful force for good in a child’s life — building fitness, resilience, and teamwork. But a growing body of medical evidence suggests that too much of a single sport, too soon, can do more harm than good.
Children who play the same sport for more than eight months out of the year face a heightened risk of overuse injuries — damage to muscles and joints from repetitive strain that can persist well into adulthood. As sports specialization among youth athletes has been on the rise, medical professionals are sounding the alarm about the long-term consequences of year-round, single-sport training.
Dr. Tyler DeLong, a sports medicine specialist with Dignity Health, works regularly with young athletes who have pushed their bodies too hard for too long. He acknowledges that early specialization can sharpen a child’s abilities, but warns the tradeoffs are serious.
“We see a lot of these athletes who show very early promise and the sports specialization can certainly hone their skills and get them kind of dominant in their age group but it also leads to burnout, fatigue for them,”
said Dr. DeLong.
What Experts Recommend
Dr. DeLong offers a straightforward guideline for parents of children between the ages of 8 and 14: for every two months spent playing a sport, kids should take at least one month off. Alternatively, parents can cap weekly training hours at a number that matches the child’s age — so a 10-year-old, for example, would train no more than 10 hours per week.
These recommendations are designed to give young bodies adequate time to recover and develop without being locked into the demands of a single athletic discipline year-round. Overuse injuries — stress fractures, tendinitis, and joint problems among them — are especially concerning in children because growing bones and connective tissue are more vulnerable to repetitive stress than those of adults.
For more on kids and family health, including related coverage on health and medicine, parents can explore reporting from KJZZ’s science desk. Recent stories include a report by KJZZ‘s Hannah Merzbach on how birth center deliveries have tripled over the past two decades, as well as coverage from Mark Brodie on the Boys & Girls Club of the Valley, where a new vice president of program innovation is working to build meaningful youth programming.
Other recent stories affecting Arizona children include reporting by Alisa Reznick on a lawsuit alleging the Trump administration is fast-tracking deportations of immigrant children, and coverage by Jill Ryan on Arizona Attorney General Kris Mayes seeking to compel the online gaming platform Roblox to hand over data related to a child safety investigation. Writer Melissa Dunmore’s reflections on Puerto Rican identity and cultural legacy, as covered by Lauren Gilger, round out a week of reporting centered on Arizona families.
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